diff --git a/docs/reference/esql/processing-commands/stats.asciidoc b/docs/reference/esql/processing-commands/stats.asciidoc
index db533866a0b1b..21b91eafd3198 100644
--- a/docs/reference/esql/processing-commands/stats.asciidoc
+++ b/docs/reference/esql/processing-commands/stats.asciidoc
@@ -2,6 +2,9 @@
 [[esql-stats-by]]
 === `STATS ... BY`
 
+The `STATS ... BY` processing command groups rows according to a common value
+and calculates one or more aggregated values over the grouped rows.
+
 **Syntax**
 
 [source,esql]
@@ -38,6 +41,10 @@ The following <<esql-agg-functions,aggregation functions>> are supported:
 
 include::../functions/aggregation-functions.asciidoc[tag=agg_list]
 
+The following <<esql-group-functions,grouping functions>> are supported:
+
+include::../functions/grouping-functions.asciidoc[tag=group_list]
+
 NOTE: `STATS` without any groups is much much faster than adding a group.
 
 NOTE: Grouping on a single expression is currently much more optimized than grouping